Did you know that the Mirror has written an article based on your post? I thought you should know. That's how i ended up here, via their link to your post in the article
Oh and i always write ridiculously long messages - i never expect people to read them either though. Idk, i always mean to write something much shorter. :/ Sorry, you can skim read or not bother reading i understand.
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so, you have my total sympathy because my mother does much the same. Slightly different motivations, but the same result really and i have a huge clutter problem already too.
Obviously those who don't have similar mother or clutter situations etc are more likely to say quite unhelpful, over-simplistic things like, just sell it or donate it. If it was really so easy then you wouldn't be discussing it online and you wouldn't be battling clutter for years. That's not the real problem. It's the extra emotional stress and wanting to be heard/respected/supported as an adult and someone probably doing their best to make things better (regarding the clutter), etc. I think you want to be heard and understood ..i read your story and i thought well there's someone who would get it. I wanted you to feel like at least some people understood too, so i was really glad a number of people were sympathetic on this site. I thought I'd add my support/sympathy too. As opposed to writing my mother another pointless angry email before the next occasion and pile of junk arrives. I hope this is a better option.
It's not fair, it's another burden and hypocrisy when your mother criticises you while adding to your problem (i liked the suggestion that you collect everything and put it back on her doorstep; maybe also with the clothes add a note saying it's more your style). It's no wonder you get angry and not grateful. It's not a gift. It might even just be a criticism or effort to control you.
Can i be honest (if not, and it's usually a bad idea, i apologise so much..because i don't know your mother to say anything really anyway. I could be 100% wrong, so sorry in advance for any offence caused) and say that i think your mother is possibly a Narcissist because you say she's trying to dress you in her style of clothes (or can she not accept you're a grown up individual?) &doesn't show concern for your feelings regarding presents or your clutter struggles (only criticising and sabotaging you, not supporting your efforts to deal with), etc. Idk, I'm only guessing. My mother is a depressed hoarder, a compulsive shopper. Her motivations are partly different, although i think narcissism or simple, ordinary selfishness is a big part too because she shows no concern over what i want or feel. I have a huge clutter problem, tell her annually multiple times not to buy me anything and am always ignored. I feel the same way you do, angry and stressed and made to feel ungrateful/guilty.
Everyone thinks it's so easy to get rid of stuff, but it's not. Especially if you don't drive, have energy, time, etc etc etc.. and also you have someone sabotaging you too. Like it's not already so hard and like you have room to store yet more stuff before you can get it to a new home/charity shop/sold. If it was easy to deal with a few new presents then you wouldn't have a clutter problem still. Decluttering is hard. It's an emotional thing, not just a practical challenge (especially when you have a large volume of stuff). Idk why people aren't understanding the situation more.
Maybe they think selling on ebay is fun, easy and profitable.. well, not really in my experience. Idk if you would have better success, but it's still a lot of work even if it's profitable/worth it financially. Even if there's no problems from the buyer.
I hate the wasted money (and things sat around unused, doing nothing but cause stress) too. Even if she kept the money for herself it would be better.
In short (maybe/at last?), you aren't ungrateful and your feelings do matter. You should be supported (offering to pay a professional declutter to help you would make sense if she insists on a present and wants to criticise your home - if you wanted that) and not have things only made worse. I doubt things will change, based on more than 3yrs of trying to get my mother to stop doing the same. a good present might also be free babysitting while you sort out your home, or just get to pamper yourself for once. Yeah, so sorry you have to deal with this too and best wishes. Hope it does improve ..because maybe you can agree something that involves experiences rather than things next year? Maybe she would enjoy doing something she could be involved in too, idk. Good luck and sympathies